Home / 871,650.09-1,307,599.88-422,001.81

Finding the Fourth Proportional to 871,650.09, 1,307,599.88 and 422,001.81

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Solution

The fourth proportional to 871,650.09, 1,307,599.88 and 422,001.81 is: 633,063.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,650.09 : 1,307,599.88 = 422,001.81 : x
  2. Step 2: Convert to fraction form
    871,650.09/1,307,599.88 = 422,001.81/x
  3. Step 3: Cross multiply
    871,650.09x = 1,307,599.88 × 422,001.81
  4. Step 4: Simplify right side
    871,650.09x = 551,809,514,005.77
  5. Step 5: Solve for x
    x = 551,809,514,005.77/871,650.09
  6. Step 6: Final answer
    x = 633,063.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.